lab recording, 31/7/1986, 29°C, position-detection lamp (Racal with B&K 1/4" with protection grid, tape no. R86-5)

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith